Drive Sprocket 21-Tooth 15-Hole 325mm Bore Built For Excavators Beefed Up For Komatsu PC100-5 PC120-6 PC150-7 And Caterpillar Machines Heavy Duty Sprocket Ready To Roll
✔️ 21 teeth, 15 bolt holes, 325mm bore, alloy steel build
The heavy-duty drive sprocket is an OEM-equivalent replacement built for excavators and mining gear. It fits Komatsu PC100-5, PC120-6, PC150-7, PC110-7, PC100-6 and many Caterpillar, Hitachi, Volvo, Doosan and Hyundai models, helping you keep your undercarriage rolling on rough sites.
✅ 21 teeth, 15 bolt holes, 325mm inner bore (uses 16x45mm coarse thread bolts)
✅ Weight: 86 lbs (39 kg) for sturdy performance
✅ Alloy steel construction stands up to excavation, trenching, and material handling
✅ OEM-equivalent parts: 16989 and 21957 for reliable replacement
✅ Helps maintain track alignment and drive system integrity
💡 What is a drive sprocket used for in excavator track systems?
A handy piece that converts engine torque into track motion, keeping heavy machinery moving on tough sites.
- Drive sprockets engage track links to transfer torque and maintain smooth motion.
- Choose the right tooth count, bore size, and bolt pattern for a solid OEM fit and longer life.
- Alloy steel construction holds up under harsh digging and mining work.